Inventor

QIN YONGZHEN

CN2 patents

Patents

2 patents

US9806506B2Oct 31, 2017

High voltage equipment box for railway vehicle

CRRC QINGDAO SIFANG CO LTD0 citations43

US10051739B2Aug 14, 2018

Control relay board for railway vehicle

CRRC QINGDAO SIFANG CO LTD0 citations34